3423423021 has 32 divisors (see below), whose sum is σ = 4897804800. Its totient is φ = 2120489280.

The previous prime is 3423422987. The next prime is 3423423053. The reversal of 3423423021 is 1203243243.

It is not a de Polignac number, because 3423423021 - 2¹⁰ = 3423421997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3423422982 and 3423423000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3423423721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1838631 + ... + 1840491.

It is an arithmetic number, because the mean of its divisors is an integer number (153056400).

Almost surely, 2^3423423021 is an apocalyptic number.

It is an amenable number.

3423423021 is a deficient number, since it is larger than the sum of its proper divisors (1474381779).

3423423021 is a wasteful number, since it uses less digits than its factorization.

3423423021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3423423021 is about 58510.0249615397. The cubic root of 3423423021 is about 1507.1397430161.

Adding to 3423423021 its reverse (1203243243), we get a palindrome (4626666264).

The spelling of 3423423021 in words is "three billion, four hundred twenty-three million, four hundred twenty-three thousand, twenty-one".